# -*- coding: utf-8 -*-
"""
Spyder Editor

This is a temporary script file.
"""


class Student(object):
      def get_score(self):
          return self._score
      def set_score(self,value):
          if not isinstance(value,int):
              raise ValueError('score must be an integer')
          if value<0 or value>100:
              raise ValueError('score must between 0~100')
          self._score=value
      
